2 * Copyright © 2013 Canonical Ltd.
4 * This program is free software: you can redistribute it and/or modify it
5 * under the terms of the GNU Lesser General Public License version 3,
6 * as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU Lesser General Public License for more details.
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 * Authored by: Thomas Voß <thomas.voss@canonical.com>
19 #include <core/posix/process.h>
21 #include <core/posix/signal.h>
23 #include <sys/types.h>
33 struct Process::Private
38 Process Process::invalid()
40 static const pid_t invalid_pid = 0;
41 Process p(invalid_pid);
47 Process::Process(pid_t pid)
52 throw std::runtime_error("Cannot construct instance for invalid pid.");
55 Process::~Process() noexcept
59 pid_t Process::pid() const
64 ProcessGroup Process::process_group_or_throw() const
66 pid_t pgid = ::getpgid(pid());
69 throw std::system_error(errno, std::system_category());
71 return ProcessGroup(pgid);
74 ProcessGroup Process::process_group(std::error_code& se) const noexcept(true)
76 pid_t pgid = ::getpgid(pid());
80 se = std::error_code(errno, std::system_category());
83 return ProcessGroup(pgid);